A group resource can be used to define roles or groups a user is a member of.

Note: Groups can be nested inside other groups to provide users with indirect membership of a group.
displayName String Human readable name for the group [REQUIRED]
members String Multi-Valued List of members of the group, the value will be the "id" value of the resource (user or group) and the multi-valued attribute type may be "user" or "group"